Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

16 Questions

14 Views

Neuronal Cell Biology (2)

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

How is resting membrane potential achieved?

3 Na+ in and 2 K+ out via Na+/K+ ATPase, more positive outside than inside, -70 mV inside

3 Na+ out and 2 K+ in via Na+/K+ ATPase, more positive outside than inside, -70 mV inside (correct)

3 Na+ in and 2 K+ out via Na+/K+ ATPase, more negative outside than inside, +70 mv inside

3 Na+ in and 2 K+ out via Na+ channels and K+ channels, more negative outside than inside, +70 mv inside

How is depolarisation achieved?

Na+ channels open, and Na+ enters, threshold reaches above -55 mv, generating AP (correct)

K+ channels open, and K+ enters, threshold reaches above -55 mv, generating AP

Na+ channels open, and Na+ enters, threshold reaches below +55 mv, generating AP

K+ channels open, and K+ enters, threshold reaches above +55 mv, generating AP

What is the Refactory period?

More negative than +70 mV, K+ channels constricted

More positive than -70 mV, K+ channels restricted

More positive than +70 mV, Na+ channels restricted

More negative than -70 mV, Na+ channels constricted (correct)

What do the Rab proteins do in synaptic vesicle exocytosis?

Vesicle targeting Signup and view all the answers

What do SM proteins do in synaptic vesicle exocytosis?

Docking/fusion Signup and view all the answers

What do SNARE proteins do in synaptic vesicle exocytosis?

Membrane fusion Signup and view all the answers

What do NSF/SNAPs do in synaptic vesicle exocytosis?

Snare recycling Signup and view all the answers

What are the excitatory neurotransmitters in the CNS?

Glutamate -> Brain, Aspartate -> Spinal Cord Signup and view all the answers

What are the inhibitory neurotransmitters of the CNS?

GABA -> Brain, Glycine -> Spinal Cord Signup and view all the answers

Glutamate acts via

Ionotropic AMPA, kainate and NMDA receptors as well as G-protein coupled receptors Signup and view all the answers

GABA acts via

Ionotropic GABA-A receptors and G-protein-coupled GABA-B receptors Signup and view all the answers

What is an example of short-term change of synaptic plasticity?

Facilitation Signup and view all the answers

What are examples of long-term change in synaptic plasticity?

Long term potentiation and long term depression Signup and view all the answers

What is NOT a post-synaptic mechanism of synaptic plasticity?

Increased neurotransmitter in synaptic cleft Signup and view all the answers

What is a mechanism of pre-synaptic synaptic plasticity?

Probability of neurotransmitter release increased Signup and view all the answers

What is the mechanism - number of synapses entail for synaptic plasticity?

Synapse formation/elimination, and activation of 'silent synapses' with only NMDA receptors from the introduction of AMPA receptors Signup and view all the answers